Biology questions
20584 published questions with worked solutions.
- Between breaths, the intrapleural pressure is approximately ______ mm Hg less than atmospheric pressure.
- The factor which does not affect the rate of alveolar diffusion is
- Name of pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in...
- The pneumotaxic and respiratory rhythm centres are respectively present in
- Select the correct statement about lymphatic system from the following?
- It is given that the end diastolic volume and end systolic volume of blood are 130 mL and 60 mL respectively in normal resting...
- Blood without corpuscles and fibrinogen is called
- Which of the following is a cell fragment?
- Erythropoiesis starts in
- Identify the polypeptide subunits present in the adult human haemoglobin.
- What will be the number of heart-beats per minute, if the stroke volume of heart increases with the total volume of blood remains...
- Match the blood vessels of human heart listed under Column-I with the functions given under Column-II. Choose the answer which...
- In human heart, identify the correct statements. 1. Volume of both the atria is the greater than the volume and both ventricles....
- As the blood passes through the capillaries, some water along with small water soluble substances move out into the spaces...
- Bicuspid and tricuspid valves opens when
- Sequence of electrical impulse in hear-beat is
- Which wave of human heart out of PQRST is used for determining the heartbeat of an individual?
- Heartbeat increases by
- Parasympathetic neural signal decreases the cardiac output by
- Systemic heart refers to